KB923: CV19, CV21, CV22 - Advanced Consist Address/Function Controls

Most customers that use Digitrax command stations use Universal Consisting instead of Advanced Consisting as described here. With Universal consisting, the consist information is handled by the command station instead of by the decoder.

CV19 is the advanced consist address. CV19 also contains data for the direction in which the consist will operate. See the table below to determine what value to program into CV19

CV19 Value

Effect on Adv Consist Address

Normal Direction of Travel of Advanced Consist

000/x00

Advanced Consist Addressing Disabled

N/A

001/x01 to

127/x7F

Advanced Consist Addressing Enabled

Forward

129/x81 to 255/xFF

Advanced Consist Addressing Enabled

Reverse

When CV19 is active, the functions within the advanced consist are individually controlled at their regular addresses.

CV21 & CV22 allow you to override this and place specific functions under the control of the advanced consist address. To determine the hex value to program into these CVs, add up the hex values of the functions you want to control in the advanced consist and program that value into the CVs. To make all CVs be controlled by the advanced consist address, program a value of 255/xFF to both CV21 & CV22.

CV21 Values

F1

x01

F2

x02

F3

x04

F4

x08

F5

x16

F6

x32

F7

x64

F8

x128

CV22 Values

F0

x01

F9

x16

F10

x32

F11

x64

F12

x128

For example: If you want to have F0, F1 and F5 controlled by the advanced consist address, program CV21 to a value of 023/x17 and CV22 to a value of 001/x0. All other functions will still be controlled by the decoder's regular address.